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    • 2. 发明申请
    • HANDHELD POWER TOOL
    • 手持电源工具
    • US20160312812A1
    • 2016-10-27
    • US15105187
    • 2014-12-16
    • HILTI AKTIENGESELLSCHAFT
    • Arjen Detmer DijkhuisPatrick ScholzRobert MeierPeter Rickers
    • F16B13/06
    • F16B13/065
    • An expansion anchor including a bolt and an expansion sleeve surrounding the bolt is provided, the bolt having: an expansion cone in the region of the front end of the bolt, which expansion cone radially enlarges the expansion sleeve when moved into same; a threaded section for introducing tensile forces into the bolt; a shoulder that limits a movement of the expansion sleeve away from the expansion cone; and at least one anti-rotation protrusion for inhibiting a rotation of the expansion sleeve in relation to the bolt, the protrusion originating at the shoulder and protruding radially outwards on the bolt. The axial length of the anti-rotation protrusion is smaller than the pitch of the threaded section arranged on the bolt.
    • 提供一种包括螺栓和围绕螺栓的膨胀套筒的膨胀锚杆,该螺栓具有:在螺栓前端区域中的膨胀锥体,当膨胀锥体移动时,膨胀锥体使膨胀套筒径向扩大; 用于将拉力引入螺栓的螺纹部分; 一个限制膨胀套管从膨胀锥体移动的肩膀; 以及至少一个防旋转突起,用于抑制膨胀套筒相对于螺栓的旋转,该突起始于肩部并在螺栓上径向向外突出。 防旋转突起的轴向长度小于布置在螺栓上的螺纹部分的间距。